萌新刚学 OI，求一份上午的提高赛题

Maxmilite @ 2021-09-19 14:12:27

by zhjie_ @ 2021-09-19 14:13:03

额，luogu大群里有吧好像

by Maxmilite @ 2021-09-19 14:13:38

@zhjie_ 确实有，不过我被异地登陆了

by _lzh @ 2021-09-19 14:14:09

https://www.luogu.com.cn/problem/U179961

by 绿化三 @ 2021-09-19 14:14:13

U179961

by a_common_man @ 2021-09-19 14:15:31

by Maxmilite @ 2021-09-19 14:15:34

感谢